<html xmlns="http://www.w3.org/1999/xhtml">

<head>
<style>
body, body * { position: fixed;  }
</style>
</head>

<body>


<div>
  <math xmlns="http://www.w3.org/1998/Math/MathML" display="block">

    <mtable>
      <mtr>
        <mtd>
          <mn>1</mn>
        </mtd>
      </mtr>
    </mtable>
  </math>
</div>

</body>
</html>
